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Q.
A dynamometer $D$ is attached to two blocks of masses $6\, kg$ and $4\, kg$ as shown in the figure. The reading of the dynamometer is
Laws of Motion
Solution:
The tension in the spring will be the reading of dynamometer
$F)_{\text {ext }}=M a$
$50-30=10(a)$
$a=2\, m / s ^{2}$
for $6\, kg$ block
$50-T=6(2)$
$T=38\, N$
